The Codemancer team is a self contained dev shop. They do a great job of interpreting requirements, ask appropriate questions at the appropriate time, self manage and deliver. All of this is done using best practices and cutting edge technology.

It has been a Pleasure working with Codemancers, A highly skilled and professional team. They have not only been able to execute exactly what was asked of them but also anticipated what long term needs and items we had missed. Will continue to turn to Codemancers for future projects and Highly recommend them as experts in their business.

In past 8months working relationship with Codemancers, I have come to know of the amazing team you have. Rails Devs on steroid, with a solid understanding of platform agnostic mobile integration. Apart from the very high level of work, the team you have gathered is very responsive. That honestly made a huge diff for me. Keep building stuff, and I am sure we're going to do another project very soon.

RubyConf India 2015, Goa

Writing your own CPU profiler and other fun things to do
(by Emil Soman)

Have you ever wondered how CPU profilers work behind the scenes? In this
talk we dig deeper and find out what CPU profiling really means, the
different modes of profiling, how they work and we'll learn how to build
a profiler for Ruby ourselves. We'll also scratch the surface of some
useful (and some silly) projects that could be built using this.